Since i can't post pics of the underside of the barrels on my Swedish 12ga hammer gun i'm listing the markings in hope that some of you fine folks could decipher them for me and tell me whats safe to shoot in the old girl.

The fella i bought it from told me it was made around 1942. Besides the serial number it has:

"Husqvarna" "20" "B" "1" "12" "K"OR an"X" that ones hard to tell for sure.

All these markings are scattered around on the underside of the barrels in the chamber area. The barrels are not damascus